Although an HVAC system that is properly maintained will hardly ever fail, sometimes it can. This is not necessarily the best time to schedule professional HVAC maintenance. If you can troubleshoot and solve a simple HVAC issue, you don't have to involve an expert. On the other hand, if there seem to be constant problems with the system, it is time to get these investigated. If you take an action early enough, you can prevent your HVAC system from breaking down completely. Besides, a thorough system checkup can prevent HVAC emergencies that occur just when the weather is terribly cold or hot.
It is advisable to get in touch with an HVAC expert when you notice the following problems.
If your HVAC unit has no mechanical issues, it will run without producing odd noises. While a subtle noisy operation is fine when turning the system on or off, loud or odd noises (humming, cracking, banging or screeching sounds) are not. They could, in fact, indicate that something is wrong with the unit. If the noises get louder, do not hesitate to plan HVAC repair with an expert.
Uncomfortable indoor environment
If the weather gets colder or hotter, the advisable thing to do is to adjust thermostat settings. But you shouldn't have to adjust your thermostat settings all the time to make your indoors more comfortable. If this is what you are doing these days, there is a problem with your HVAC. Perhaps the air ducts are clogged or leaking or the thermostat itself is not working properly. Additionally, some components in the HVAC system itself could be faulty. So, have a system checkup done.
Abnormally quick cycling
If the heater or the air conditioner turns on and off so fast several times a day, there is a problem. In case the part that is acting this way worked perfectly before, then it may be that the thermostat is faulty or there is a wiring problem. When the system cycles on and off, it's leading to avoidable damage to various components. If not fixed, you will have a bigger HVAC issue to correct in the near future. Besides, these fluctuating cycles could cause energy inefficiency and high utility bills.
Suffering air quality
Indoor air quality is nothing to mess with. An HVAC system can suck up a variety of pollutants, including dust, dirt, and mold. Mold is one of the more serious of these issues. An HVAC specialist can do a thorough cleaning of the insides of the air ducts for effective pathogen and mold removal.
Increasing utility costs
If you have been receiving higher utility bills, something could be amiss with your HVAC. A slight increase in energy use is expected in the summer and winter seasons. However, if the increase is dramatic, there is a problem. This could be something you cannot control, such as the system getting older and less functional. It could also be that some components have malfunctioned and this is causing the whole unit to be less efficient. As long as you have not increased your energy usage, there is an issue with your system. The best way to know is to call in an HVAC services specialist.
Don't try to repair complex HVAC issues as you might worsen them. If your HVAC unit has a problem and needs maintenance, it's advisable to consult only an expert.